JP6094153B2 - Chemical heat storage device - Google Patents

Description

  The present invention relates to a chemical heat storage device.

  Conventionally, a chemical heat storage device using a heat storage material is known (see, for example, Patent Document 1).

  In Patent Document 1, a reactor containing solid particles (heat storage material) that reacts with a reaction gas such as water vapor, and a heat storage heat medium or a heat dissipation heat medium provided around the reactor are provided. A chemical heat storage type heat pump (chemical heat storage device) including a heat medium flow path of one system that is selectively flowed is disclosed. This chemical heat storage type heat pump is configured to cause solid particles in the reactor to flow by periodically turning the reactor upside down or vibrating. As a result, the reaction gas and solid particles react more uniformly, and the heat exchange efficiency between the solid particles and the heat medium (heat storage medium for heat storage or heat dissipation) that flows through the heat medium flow path around the reactor is increased. It is increasing. In addition, the chemical heat storage heat pump of Patent Document 1 performs heat exchange between the heat storage heat medium and the solid particles by flowing the heat storage heat medium through the heat medium flow path at the time of heat storage, and at the time of heat dissipation, the heat medium. A heat dissipation heat medium different from the heat storage heat medium is allowed to flow through the flow path so that heat exchange is performed between the heat dissipation heat medium and the solid particles. That is, different heat media (heat exchange fluids) are stored in the common heat medium flow path when storing heat and when radiating heat.

JP-A-5-248728

  However, in the chemical heat storage type heat pump (chemical heat storage device) of Patent Document 1 described above, different heat media (heat exchange fluids) flow through the common heat medium flow path during heat storage and during heat release. One heat medium remaining in the inside is mixed as a foreign substance into the other heat medium, and as a result, the performance of the heat medium (heat exchange fluid) may be deteriorated due to the mixed foreign substance. is there. In addition, since it is necessary to switch the heat medium flowing through the heat medium flow path between heat storage and heat dissipation, it is necessary to provide a flow path switching valve for switching the heat medium flowing through the heat medium flow path. There is also a problem that the flow path configuration of the heat medium flow path of the chemical heat storage type heat pump (chemical heat storage device) becomes complicated.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to reduce the performance of the heat exchange fluid caused by different heat exchange fluids flowing in a common flow path. And chemical heat storage device capable of exchanging heat well with heat exchange fluid for heat storage and heat exchange fluid for heat dissipation during heat storage and heat dissipation, respectively, while suppressing complication of the flow path configuration of the heat exchange fluid Is to provide.

In order to achieve the above object, a chemical heat storage device according to a first aspect of the present invention includes a first heat exchange section in which a first heat exchange fluid flows and a second heat in which a second heat exchange fluid flows. A reaction container including the exchange part and the heat storage material storage part for storing the heat storage material, and the heat storage material in the first heat exchange part according to the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction And a moving means for selectively moving the heat storage material to the second position where the heat storage material contacts the second heat exchanging section , wherein the moving means has the first heat exchanging section located below the reaction vessel. A reversal drive unit that moves the reaction vessel by reversing it up and down to a first position where the second heat exchange unit is located below the reaction vessel, and the first heat exchange unit or the second heat When the replacement part is located at the bottom of the reaction vessel, the heat storage material And is configured to contact the first heat exchanger or the second heat exchange unit moved to.

In the chemical heat storage device according to the first aspect of the present invention, as described above, the first heat exchange part through which the first heat exchange fluid flows and the second heat exchange part through which the second heat exchange fluid flows are provided. In the reaction vessel, the first heat exchange fluid and the second heat exchange fluid that are different from each other are provided in the reaction vessel including the heat storage material containing portion for containing the heat storage material. Unlike the case where both the first heat exchange fluid and the second heat exchange fluid are allowed to flow through the common heat exchange section (flow path), the heat of one side is flowed through the two systems of the exchange section and the second heat exchange section. It is possible to suppress the exchange fluid from being mixed into the other heat exchange fluid. As a result, it is possible to suppress the performance of the heat exchange fluid from being deteriorated due to the contamination of foreign matters. Further, in the reaction vessel, the first heat exchange part through which the first heat exchange fluid flows and the second heat exchange part through which the second heat exchange fluid flow are provided separately from each other, so that different heat exchange fluids can be shared. Unlike the configuration that flows through the heat exchange section (flow channel), there is no need to switch the heat exchange fluid that flows to the heat exchange section between heat storage and heat dissipation, so the flow for switching the heat exchange fluid that flows to the heat exchange section There is no need to provide a path switching valve. As a result, it is possible to prevent the flow path configuration of the heat exchange fluid of the chemical heat storage device from becoming complicated.

  In addition, the moving means selectively reacts with the first position where the heat storage material contacts the first heat exchange portion and the second position where the heat storage material contacts the second heat exchange portion according to heat storage and heat dissipation. By moving the container, the heat storage material is brought into intensive contact with either the first heat exchange unit or the second heat exchange unit during heat storage, and the heat storage material is moved into the first heat exchange unit and the second heat during heat dissipation. Since it can be brought into intensive contact with either one of the exchange parts, heat exchange can be efficiently performed between the corresponding heat exchange fluid and the heat storage material in both cases of heat storage and heat dissipation. As a result, the heat exchange response (heat exchange rate) can be improved. Therefore, in this chemical heat storage device, while suppressing the deterioration of the performance of the heat exchange fluid and the complication of the flow path configuration of the heat exchange fluid due to the flow of different heat exchange fluids to the common heat exchange section (flow channel) , During heat storage and heat dissipation, respectively, a heat exchange fluid for heat storage (one of the first heat exchange fluid and the second heat exchange fluid) and a heat exchange fluid for heat dissipation (first heat exchange fluid and first heat exchange fluid) The heat exchange fluid can be satisfactorily exchanged with either one of the two heat exchange fluids.

In addition, the first heat exchanging unit or the second heat exchanging unit can be easily positioned at the lower part of the reaction vessel simply by turning the reaction vessel upside down by the inversion driving unit, and the heat storage material can be placed in the reaction vessel by its own weight. Since it can be moved to the heat exchanging part located in the lower part, the heat storage material can be selectively brought into contact with the first heat exchanging part or the second heat exchanging part according to the heat storage and the heat dissipation. . Moreover, since the heat storage material is moved and loosened by moving the heat storage material to its lower part by its own weight, the heat storage material can be prevented from solidifying, and as a result, the service life of the heat storage material can be extended. . In addition, since there is a space in the reaction vessel where the heat storage material can move, unlike the case where the heat storage material is filled in the heat storage material container without gaps, the heat storage material can be stored even when the heat storage material expands due to a hydration reaction. It is possible to suppress the material from being pressed and solidified. Also by this, the service life of the heat storage material can be extended.

  In this case, preferably, the first heat exchange section is configured so that the high-temperature first heat exchange fluid flows, and the second heat exchange section is configured so that the second heat exchange fluid to be supplied with heat flows. The reversal drive unit moves the reaction vessel upside down to the first position where the first heat exchange unit is located at the lower part of the reaction vessel during heat storage, and the second heat exchange unit moves to the lower part of the reaction vessel during heat dissipation. The reaction vessel is configured to move upside down to a second position located at the position. If comprised in this way, at the time of heat storage, making a heat storage material contact the 1st heat exchange part through which a high temperature 1st heat exchange fluid flows, and heating a heat storage material with the heat of the 1st heat exchange fluid (heat storage). In addition, at the time of heat dissipation, the second heat exchange fluid is heated by the heat radiated from the heat storage material by bringing the heat storage material into contact with the second heat exchange portion through which the second heat exchange fluid to be supplied with heat flows. be able to.

Chemical heat storage device according to a second aspect of the invention, a second heat exchanger where the first heat exchanger the first heat exchange fluid flows through the interior and the second heat exchange fluid flowing inside, accommodating a heat storage material A reaction container that includes a heat storage material storage unit that performs the heat storage by dehydration reaction of the heat storage material and the heat release by the hydration reaction, and the first position and the first position where the heat storage material contacts the first heat exchange unit A moving means for selectively moving to a second position where the heat storage material is in contact with the two heat exchanging parts, and a first vertically symmetrical structure for supplying or discharging the first heat exchanging fluid to or from the first heat exchanging part. and the flow path, e Bei a second flow path of the vertically symmetric structure for supplying or discharging the second heat exchange fluid to the second heat exchanger, the reaction vessel located at the first position and the second position In both cases, the supply of the first heat exchange fluid to the first heat exchange section via the first flow path or With out takes place, the supply or discharge of the second heat exchange fluid to the second heat exchanger through a second flow path is configured to be performed. If comprised in this way, even if the reaction container is located in any of the 1st position and the 2nd position, it is the 1st in a 1st heat exchange part via the 1st channel and the 2nd channel, respectively. The heat exchange fluid and the second heat exchange fluid in the second heat exchange section can be constantly circulated.

Chemical heat storage device according to a third aspect of the invention, a second heat exchanger where the first heat exchanger the first heat exchange fluid flows through the interior and the second heat exchange fluid flowing inside, accommodating a heat storage material A reaction container that includes a heat storage material storage unit that performs the heat storage by dehydration reaction of the heat storage material and the heat release by the hydration reaction, and the first position and the first position where the heat storage material contacts the first heat exchange unit And a moving means for selectively moving the heat storage part to the second position where the heat storage material contacts the heat exchange part, and the heat storage material container is released from the heat storage material by a dehydration reaction during heat storage and heat storage material and water during heat dissipation. It is formed in a cylindrical shape by a porous structure having a large number of pores through which water that reacts with water can pass. If constituted in this way, at the time of heat storage, water vapor released from the heat storage material by the dehydration reaction inside the heat storage material storage portion can be easily released to the outside of the heat storage material storage portion through many holes, At the time of heat dissipation, water vapor can be taken in from the outside of the heat storage material accommodation part through a large number of holes, and the heat storage material and water vapor can be hydrated inside the heat storage material accommodation part. Also, by forming the heat storage material accommodating portion in a cylindrical shape with a porous structure, unlike the case where the water vapor inlet / outlet passage is provided only at a specific position of the heat storage material accommodating portion, from the entire region (entire circumference) of the heat storage material accommodating portion Steam can be released to the outside of the heat storage material storage part, and since water vapor can be taken into the heat storage material storage part from the entire area (entire circumference) of the heat storage material storage part, the heat storage material in the heat storage material storage part The dehydration reaction and the hydration reaction can be performed more uniformly.

Chemical heat storage device according to a fourth aspect of the present invention includes a second heat exchanger where the first heat exchanger the first heat exchange fluid flows through the interior and the second heat exchange fluid flowing inside, accommodating a heat storage material A reaction container that includes a heat storage material storage unit that performs the heat storage by dehydration reaction of the heat storage material and the heat release by the hydration reaction, and the first position and the first position where the heat storage material contacts the first heat exchange unit 2 is provided with a moving means for selectively moving the heat storage material to the second position where the heat storage material contacts , and the first heat exchange portion and the second heat exchange portion are arranged inside the heat storage material accommodation portion. And the heat storage material is arrange | positioned inside the heat storage material accommodating part so that a movement to the 1st heat exchange part side and the 2nd heat exchange part side is possible. If comprised in this way, in a heat storage material accommodating part, since a heat storage material can be made to contact a 1st heat exchange part or a 2nd heat exchange part directly, the heat exchange fluid of a corresponding heat exchange part and Heat can be exchanged more efficiently with the heat storage material.

Chemical heat storage device according to the fifth aspect of the present invention includes a second heat exchanger where the first heat exchanger the first heat exchange fluid flows through the interior and the second heat exchange fluid flowing inside, accommodating a heat storage material A reaction container that includes a heat storage material storage unit that performs the heat storage by dehydration reaction of the heat storage material and the heat release by the hydration reaction, and the first position and the first position where the heat storage material contacts the first heat exchange unit And a moving means for selectively moving the heat storage material to the second position where the heat storage material contacts the first heat exchange portion and the second heat exchange portion, both of which are formed by a plurality of heat exchange pipes facing each other. The plurality of heat exchange pipes are arranged at intervals at which the heat storage material can move between the plurality of heat exchange pipes. If comprised in this way, while being able to distribute and flow the 1st heat exchange fluid and the 2nd heat exchange fluid to a plurality of heat exchange pipes, respectively, each of the heat exchange pipes through which the dispersed heat exchange fluid flows In contrast, since the heat storage material can be brought into contact with the entire circumference, the heat exchange efficiency between the corresponding heat exchange fluid and the heat storage material can be improved. As a result, the responsiveness of heat exchange can be enhanced.

Chemical heat storage device according to a sixth aspect of the present invention includes a second heat exchanger where the first heat exchanger the first heat exchange fluid flows through the interior and the second heat exchange fluid flowing inside, accommodating a heat storage material A reaction container that includes a heat storage material storage unit that performs the heat storage by dehydration reaction of the heat storage material and the heat release by the hydration reaction, and the first position and the first position where the heat storage material contacts the first heat exchange unit 2 is provided with a moving means for selectively moving the heat storage part to the second position where the heat storage material contacts, and the reaction container and the moving means are installed in the vehicle, and the reaction container is moved while the vehicle is running. When moved to the first position and the first heat exchange fluid consisting of high-temperature exhaust gas flows inside the first heat exchange section, heat storage by the heat storage material is performed, and when the vehicle starts running, the reaction vessel is in the second position. The second heat exchange by moving to the position and dissipating heat to the heat storage material Through the second heat exchange fluid flowing inside the part it is configured as heating a predetermined portion of the vehicle is performed. If comprised in this way, while driving | running | working of a vehicle, while being able to store heat by a thermal storage material effectively using the heat | fever of the exhaust gas of a vehicle, when the driving | running | working of a vehicle started, it was stored by the thermal storage material. Since heat can be dissipated to heat a predetermined part of the vehicle (for example, a heater core (a part for warming air in the passenger compartment) or a battery), the heat of exhaust gas can be used effectively.

  In the present application, apart from the chemical heat storage device according to the above aspect, the following other configurations are also conceivable.

(Additional item 1)
That is, the chemical heat storage device according to another configuration of the present application includes a first heat exchange unit in which the first heat exchange fluid flows, a second heat exchange unit in which the second heat exchange fluid flows, and the first heat A heat storage material according to a reaction container including a heat storage material storage portion for storing a heat storage material and a heat storage material by a dehydration reaction and a heat release by a hydration reaction. Is moved to the first heat exchange part side and the second heat exchange part side. If comprised in this way, in a reaction container, it will be two systems, the 1st heat exchange part and 2nd heat exchange part for exclusive use in which the mutually different 1st heat exchange fluid and 2nd heat exchange fluid were each provided separately. Unlike the case where both the first heat exchange fluid and the second heat exchange fluid are caused to flow through a common heat exchange section (flow path), one heat exchange fluid is mixed into the other heat exchange fluid. Can be suppressed. As a result, it is possible to suppress the performance of the heat exchange fluid from being deteriorated due to the contamination of foreign matters. Further, in the reaction vessel, the first heat exchange part through which the first heat exchange fluid flows and the second heat exchange part through which the second heat exchange fluid flow are provided separately from each other, so that different heat exchange fluids can be shared. Unlike the configuration that flows through the heat exchange section (flow channel), there is no need to switch the heat exchange fluid that flows to the heat exchange section between heat storage and heat dissipation, so the flow for switching the heat exchange fluid that flows to the heat exchange section There is no need to provide a path switching valve. As a result, it is possible to prevent the flow path configuration of the heat exchange fluid of the chemical heat storage device from becoming complicated. Moreover, the heat storage material is selectively moved to the first heat exchange part side and the second heat exchange part side according to the heat storage and the heat dissipation by the moving means, so that the heat storage material is subjected to the first heat exchange during the heat storage. Since the heat storage material can be concentrated on either side of the first heat exchange part and the second heat exchange part at the time of heat dissipation, it can be concentrated on either side of the part and the second heat exchange part. In both cases of heat storage and heat dissipation, heat can be efficiently exchanged between the corresponding heat exchange fluid and the heat storage material. As a result, the heat exchange response (heat exchange rate) can be improved. Therefore, in this chemical heat storage device, while suppressing the deterioration of the performance of the heat exchange fluid and the complication of the flow path configuration of the heat exchange fluid due to the flow of different heat exchange fluids to the common heat exchange section (flow channel) , During heat storage and heat dissipation, respectively, a heat exchange fluid for heat storage (one of the first heat exchange fluid and the second heat exchange fluid) and a heat exchange fluid for heat dissipation (first heat exchange fluid and first heat exchange fluid) The heat exchange fluid can be satisfactorily exchanged with either one of the two heat exchange fluids.

(Appendix 2)
In the chemical heat storage device according to the other configuration, preferably, both the first heat exchange unit and the second heat exchange unit are configured by a plurality of heat exchange pipes facing each other, and the plurality of heat exchange pipes are The heat storage material is disposed at a distance allowing movement between the plurality of heat exchange pipes. If comprised in this way, while being able to distribute and flow the 1st heat exchange fluid and the 2nd heat exchange fluid to a plurality of heat exchange pipes, respectively, each of the heat exchange pipes through which the dispersed heat exchange fluid flows In contrast, since the heat storage material can be brought into contact with the entire circumference, the heat exchange efficiency between the corresponding heat exchange fluid and the heat storage material can be improved. As a result, the responsiveness of heat exchange can be enhanced.

  According to the present invention, as described above, while suppressing deterioration in the performance of the heat exchange fluid due to the flow of different heat exchange fluids through the common flow path and the complication of the flow path configuration of the heat exchange fluid, Heat exchange and heat exchange fluid for heat storage and heat exchange fluid for heat radiation can be favorably exchanged at the time and during heat radiation, respectively.

It is the schematic which showed the arrangement position of the chemical heat storage apparatus by 1st and 2nd embodiment of this invention. It is the schematic which showed the state which the reaction container of the chemical thermal storage apparatus by 1st Embodiment of this invention is located in a thermal storage position. It is the schematic which showed the state which the reaction container of the chemical thermal storage apparatus by 1st Embodiment of this invention is located in a thermal radiation position. It is sectional drawing in the heat storage position along the IV-IV line of FIG. It is sectional drawing in the thermal radiation position along the VV line of FIG. It is sectional drawing of the 1st bracket part and 1st shaft part which followed the VI-VI line of FIG. It is sectional drawing of the 1st bracket part and 1st shaft part which followed the VII-VII line of FIG. It is sectional drawing of the 1st bracket part and 1st shaft part which followed the VIII-VIII line of FIG. It is sectional drawing of the 1st bracket part and 1st shaft part which followed the IX-IX line of FIG. It is the schematic which showed the state which the reaction container of the chemical thermal storage apparatus by 1st Embodiment of this invention moves from a thermal storage position to a thermal radiation position. It is the schematic which showed the state which the reaction container of the chemical thermal storage apparatus by 2nd Embodiment of this invention is located in a thermal storage position. It is the schematic which showed the state which the reaction container of the chemical thermal storage apparatus by 2nd Embodiment of this invention is located in a thermal radiation position. It is the perspective view which showed the 1st modification which provided the vertical fin in the heat exchange pipe of the chemical heat storage apparatus by 1st and 2nd embodiment of this invention. It is the perspective view which showed the 2nd modification which provided the horizontal fin in the heat exchange pipe of the chemical heat storage apparatus by 1st and 2nd embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
With reference to FIGS. 1-9, the structure of the chemical heat storage apparatus 100 by 1st Embodiment of this invention is demonstrated.

  As shown in FIG. 1, the chemical heat storage device 100 according to the first embodiment of the present invention is configured to be mounted on a vehicle 110 such as an automobile. In addition, the chemical heat storage device 100 stores heat using high-temperature exhaust gas that is discharged from the engine 10 and circulates inside the muffler 20 while the vehicle 110 is traveling, and uses the stored heat when the vehicle starts traveling. Thus, the heater core 30 and the battery 40 for heating the air in the passenger compartment are heated. The heater core 30 and the battery 40 are both examples of the “predetermined portion” of the present invention.

  As shown in FIGS. 2 and 3, the chemical heat storage device 100 includes a reaction vessel 1 and a reversal drive unit 2 that moves (turns) the reaction vessel 1 by inverting it vertically. The reaction vessel 1 includes a cylindrical vacuum chamber 11, a first heat exchange unit 12 composed of a plurality of first heat exchange pipes 12 a facing each other, and a second heat composed of a plurality of second heat exchange pipes 13 a facing each other. The exchange part 13 and the thermal storage material accommodating part 14 which accommodates the thermal storage material 3 which consists of calcium oxide (CaO) are included. The inversion driving unit 2 is an example of the “moving unit” in the present invention. The first heat exchange pipe 12a and the second heat exchange pipe 13a are both examples of the “heat exchange pipe” of the present invention.

  A first shaft portion 15 is attached to one end portion (end portion in the Y1 direction) of the vacuum chamber 11 in the tube axis direction (Y direction), and the other end portion in the tube axis direction of the vacuum chamber 11 (Y2 direction). The second shaft portion 16 is attached to the end portion. A first bracket portion 17 is provided at an end portion (end portion in the Y1 direction) of the first shaft portion 15 on the opposite side to the vacuum chamber 11. In addition, a second bracket portion 18 is provided at an end portion (end portion in the Y2 direction) of the second shaft portion 16 on the opposite side to the vacuum chamber 11. Further, the first bracket portion 17 and the second bracket portion 18 are fixedly installed without rotating. The reaction container 1 is rotated around the rotation axis L1 extending in the tube axis direction (Y direction) of the reaction container 1 by the reversal drive unit 2, so that the heat storage material 3 comes into contact with the first heat exchange pipe 12a. It is configured to be selectively moved to a position (see FIGS. 2 and 4) and a heat radiation position (see FIGS. 3 and 5) where the heat storage material 3 contacts the second heat exchange pipe 13a. Further, the reaction vessel 1 is rotated integrally with the first shaft portion 15 and the second shaft portion 16 by the reversal drive portion 2. The heat storage position is an example of the “first position” in the present invention, and the heat dissipation position is an example of the “second position” in the present invention.

  In addition, as shown in FIGS. 2 and 4, the chemical heat storage device 100 is moved to the heat storage position while the vehicle 110 is traveling, and the first heat exchange pipe 12 a (first heat exchange unit 12) is moved. ), Heat storage by the heat storage material 3 is performed when high-temperature exhaust gas flows. On the other hand, when the vehicle 110 starts to travel, as shown in FIGS. 3 and 5, the reaction container 1 is moved to the heat radiating position and radiated to the heat storage material 3, whereby the second heat exchange pipe 13 a (second heat exchange part). 13) The heater core 30 and the battery 40 are heated through the coolant liquid flowing inside. That is, in the chemical heat storage device 100 according to the first embodiment of the present invention, the dedicated first heat exchange pipe 12a (first heat exchange section 12) and the second heat exchange pipe 13a provided with the exhaust gas and the coolant liquid separately, respectively. It flows in two systems (second heat exchange unit 13). The exhaust gas is an example of the “first heat exchange fluid” in the present invention, and the coolant liquid is an example of the “second heat exchange fluid” in the present invention. Hereinafter, the configuration of the chemical heat storage device 100 will be described in more detail.

  The vacuum chamber 11 is a low pressure chamber (vacuum chamber), and accommodates the first heat exchange unit 12, the second heat exchange unit 13, and the heat storage material accommodation unit 14 therein. Further, a water vapor inlet / outlet port 111 is provided at the end of the vacuum chamber 11 on the Y2 direction side, and water vapor is discharged from the inside of the vacuum chamber 11 to the outside through the water vapor inlet / outlet port 111, and also through the water vapor inlet / outlet port 111. Thus, water vapor flows from the outside to the inside of the vacuum chamber 11. The water vapor inlet / outlet port 111 is connected to an evaporator / condenser 50 that contains water via a flow path (not shown).

  The plurality of first heat exchange pipes 12a (first heat exchange units 12) are configured such that high-temperature exhaust gas flows inside. The plurality of second heat exchange pipes 13a (second heat exchange units 13) are configured such that the coolant liquid to which heat is to be supplied flows inside. The plurality of first heat exchange pipes 12 a (second heat exchange pipes 13 a) are disposed inside the heat storage material accommodation unit 14. The plurality of first heat exchange pipes 12a (second heat exchange pipes 13a) have a circular pipe shape and are mutually connected so as to extend in the direction (Y direction) in which the rotation axis L1 of the cylindrical reaction vessel 1 extends. It is provided in parallel. Further, the first heat exchange pipe 12a and the second heat exchange pipe 13a have the same cross-sectional shape (size, shape, and plate thickness), and are provided in the same number. In addition, the plurality of first heat exchange pipes 12a (second heat exchange pipes 13a) includes the first heat exchange pipe 12a (second heat The replacement pipes 13a) are arranged with a distance D1 (a distance between the outer peripheral portions of adjacent pipes) that can move between the replacement pipes 13a). Moreover, the 1st heat exchange pipe 12a (2nd heat exchange pipe 13a) is formed with the metal (for example, copper alloy, aluminum alloy, carbon steel, alloy steel etc.) excellent in heat conductivity. In addition, the plurality of first heat exchange pipes 12a are arranged substantially evenly in a region on one half inside the heat storage material accommodating portion 14 (region below the rotation axis L1 in the state of FIG. 4). The plurality of second heat exchange pipes 13a are arranged substantially evenly in the other half region (the region above the rotation axis L1 in the state of FIG. 4) inside the heat storage material accommodating portion 14.

  In addition, each of the plurality of first heat exchange pipes 12a (second heat exchange pipes 13a) has one end portion (an end portion on the Y1 direction side) in the direction (Y direction) in which the rotation axis L1 of the heat storage material accommodation portion 14 extends. ) Is connected to the one connection portion 121a (131a) and is connected to the other connection portion 121b (131b) at the other end portion (end portion on the Y2 direction side) in the direction in which the rotation axis L1 of the heat storage material accommodation portion 14 extends. Yes. On the other hand, the connection part 121 a (131 a) is arranged outside the one end side of the heat storage material accommodation part 14 and inside the vacuum chamber 11. On the other hand, the connecting part 121a connects the first heat exchange pipe 12a and the exhaust gas flow channel 151 provided in the first shaft part 15, and the one connecting part 131a connects the second heat exchange pipe 13a and the first shaft part 15 to each other. The coolant liquid flow path 152 provided is connected. The other connecting portion 121 b (131 b) is disposed outside the heat storage material accommodating portion 14 on the other end side and inside the vacuum chamber 11. The other connection part 121b connects the first heat exchange pipe 12a and the exhaust gas flow path 161 provided in the second shaft part 16, and the other connection part 131b connects the second heat exchange pipe 13a and the second shaft part 16. The provided coolant liquid flow path 162 is connected. The exhaust gas flow channel 151 is an example of the “first flow channel” in the present invention, and the exhaust gas flow channel 161 is an example of the “second flow channel” in the present invention.

  The heat storage material accommodating portion 14 is formed in a cylindrical shape by a porous structure having a large number of holes 141. Specifically, the heat storage material accommodating portion 14 has a cylindrical portion 14a and a pair of disc-shaped lid portions 14b that close both ends of the cylindrical portion 14a, and the cylindrical portion 14a is punched having a large number of holes 141. It is made of metal. Moreover, the heat storage material accommodating part 14 is formed with the metal (for example, copper alloy, aluminum alloy, carbon steel, alloy steel etc.) excellent in thermal conductivity. A large number of holes 141 in the cylindrical portion 14a allow water vapor released from the heat storage material 3 due to a dehydration reaction during heat storage to pass from the inside of the heat storage material accommodation portion 14 toward the external water vapor passage portion 112, and during heat dissipation, the heat storage material 3 The water vapor that undergoes a hydration reaction is passed from the water vapor passage portion 112 toward the inside of the heat storage material accommodation portion 14. The water vapor passage portion 112 is a region inside the vacuum chamber 11 and outside the heat storage material accommodation portion 14. In addition, the large number of holes 141 have a particle size (for example, about several hundred μm) of the heat storage material 3 so that the heat storage material 3 housed inside the heat storage material housing portion 14 does not leak out of the heat storage material housing portion 14. Smaller inner diameter (for example, about 100 μm or less). Further, the numerous holes 141 are formed uniformly over substantially the entire area of the cylindrical portion 14 a of the heat storage material accommodation portion 14. A plurality of through holes (not shown) are formed in the pair of lid portions 14b, and the first heat exchange pipe 12a (second heat exchange pipe 13a) is connected to the one connecting portion 121a (131a) through the through holes. And it is connected to the other connection part 121b (131b).

  As shown in FIGS. 2, 3, and 6 to 9, the first shaft portion 15 is formed in a cylindrical shape and has a pair of exhaust gas passages 151 and a pair of coolant liquid passages 152 extending in the Y direction. doing. Specifically, as shown in FIGS. 6, 7, and 9, the pair of exhaust gas channels 151 has a fan-shaped cross-sectional shape and is formed in a vertically symmetrical structure. Further, as shown in FIGS. 6 to 8, the pair of coolant liquid channels 152 has a fan-like cross-sectional shape and is formed in a vertically symmetrical structure. In addition, the pair of exhaust gas flow channels 151 are disposed at positions shifted by 90 degrees around the rotation axis L <b> 1 with respect to the pair of coolant liquid flow channels 152. Further, in both cases where the reaction vessel 1 is located at the heat storage position and the heat dissipation position, the exhaust gas is supplied to the first heat exchange unit 12 through the pair of exhaust gas channels 151 and the pair of coolant liquid channels 152 are The coolant liquid is discharged from the second heat exchanging unit 13. Further, the exhaust gas flow channel 151 is formed so as to extend to a position corresponding to an exhaust gas groove portion 171 described later of the first bracket portion 17 on the Y1 direction side, and the coolant liquid flow channel 152 is formed on the first bracket side on the Y1 direction side. The part 17 is formed to extend to a position corresponding to a coolant liquid groove part 172 described later. That is, the exhaust gas passage 151 is formed to extend longer in the Y1 direction than the coolant liquid passage 152.

  Further, as shown in FIGS. 7 and 9, a penetrating portion 151 a extending toward the outer peripheral surface 15 a of the first shaft portion 15 is formed at the end of the exhaust gas flow channel 151 on the Y1 direction side. Further, as shown in FIGS. 6 and 8, a penetrating portion 152 a extending toward the outer peripheral surface 15 a of the first shaft portion 15 is formed at the end of the coolant liquid flow path 152 on the Y1 direction side. The exhaust gas flow channel 151 is connected to the exhaust gas groove portion 171 of the first bracket portion 17 through the through portion 151a, and the coolant liquid flow channel 152 is connected to the coolant liquid groove portion 172 of the first bracket portion 17 through the through portion 152a. Has been.

  The 1st bracket part 17 is formed in the cylindrical shape, and has the through-hole 17a penetrated in a Y direction. Moreover, the 1st bracket part 17 is comprised so that the 1st shaft part 15 inserted in the through-hole 17a may be rotatably supported. Specifically, the first bracket portion 17 has an exhaust gas groove portion 171 and a coolant liquid groove portion 172 formed circumferentially on the inner peripheral surface 17b of the through-hole 17a, and the first shaft portion 15 includes the exhaust gas groove portion. It is rotatably supported via four seal bearings 173 provided on both sides of 171 and both sides of coolant liquid groove 172. The seal bearing 173 has a function of preventing the exhaust gas and the coolant from leaking between the outer peripheral surface 15 a of the first shaft portion 15 and the inner peripheral surface 17 b of the first bracket portion 17. As shown in FIGS. 7 and 8, the first bracket portion 17 has a through hole 171 a extending from the exhaust gas groove portion 171 toward the outer peripheral surface 17 c of the first bracket portion 17, and FIGS. 6 and 8. As shown, a through hole 172 a extending from the coolant groove 172 toward the outer peripheral surface 17 c of the first bracket portion 17 is formed. The exhaust gas discharged from the engine 10 flows into the exhaust gas groove 171 through the muffler 20 and the through hole 171a. The coolant liquid in the coolant liquid groove 172 is discharged to a pipe (not shown) through the through hole 172a and supplied to the heater core 30 and the battery 40 side.

  The second shaft portion 16 has the same structure as that of the first shaft portion 15 and is formed symmetrically with the first shaft portion 15 in the Y direction. Further, in the case where both of the reaction containers 1 are positioned at the heat storage position and the heat dissipation position, exhaust gas is discharged to the first heat exchange unit 12 through the pair of exhaust gas flow paths 161 of the second shaft portion 16, and the second The coolant liquid is supplied to the second heat exchange unit 13 through the pair of coolant liquid channels 162 of the shaft portion 16. Since the other structure of the 2nd shaft part 16 is the same as that of the said 1st shaft part 15, description is abbreviate | omitted. The second bracket portion 18 has the same structure as the first bracket portion 17 and is formed symmetrically with the first bracket portion 17 in the Y direction. That is, the second bracket part 18 has a circumferential exhaust gas groove part 181 and a circumferential coolant liquid groove part 182 formed around the second shaft part 16. The exhaust gas groove part 181 and the coolant liquid groove part 182 of the second bracket part 18 correspond to the exhaust gas groove part 171 and the coolant liquid groove part 172 of the first bracket part 17, respectively. Since the other structure of the 2nd bracket part 18 is the same as that of the said 1st bracket part 17, description is abbreviate | omitted.

  The inversion driving unit 2 includes a motor 21 and a rotating shaft portion 22 that is rotated by the motor 21. The reversal drive unit 2 has a heat storage position (see FIGS. 2 and 4) where the first heat exchange pipe 12 a (first heat exchange unit 12) is located below the reaction vessel 1 according to heat storage and heat release. The two heat exchange pipes 13a (second heat exchange unit 13) are configured so that the reaction vessel 1 is turned upside down to a heat radiation position (see FIGS. 3 and 5) located at the lower part of the reaction vessel 1. That is, the inversion driving unit 2 moves the reaction container 1 to the heat storage position where the first heat exchange pipe 12a is located at the lower part of the reaction container 1 during heat storage, and the second heat exchange pipe 13a serves as the reaction container 1 during heat dissipation. The reaction vessel 1 is moved to a heat radiation position located at the bottom of the plate.

  Next, the operation at the time of heat storage and heat dissipation of the chemical heat storage device 100 according to the first embodiment having the above-described configuration will be described.

  During heat storage, the first heat exchange pipe 12a (first heat exchange unit 12) is placed under the reaction vessel 1 by the inversion drive unit 2 during traveling of the vehicle 110, as shown in FIGS. The reaction container 1 is moved to the heat storage position. At this time, the heat storage material 3 in the heat storage material accommodation unit 14 is moved from the second heat exchange unit 13 side to the first heat exchange unit 12 side through the plurality of heat exchange pipes by its own weight, and thus the plurality of first heats. It is filled between the exchange pipes 12a. That is, the heat storage material 3 in the heat storage material accommodation portion 14 moves downward due to its own weight and comes into contact with the first heat exchange pipe 12a. Thereby, the heat storage material 3 is heated by the high-temperature exhaust gas flowing inside the first heat exchange pipe 12a to cause a dehydration reaction of the heat storage material 3, and as a result, the heat storage material 3 is stored (heated and regenerated). Moreover, the heat storage material 3 is fluidized and loosened inside the heat storage material accommodation part 14 by moving to the lower part. Further, the water vapor released from the heat storage material 3 by the dehydration reaction is released to the outside of the heat storage material accommodation portion 14 through a large number of holes 141 of the heat storage material accommodation portion 14, and then, through the water vapor inlet / outlet 111 of the vacuum chamber 11. And returned to the evaporator / condenser 50. At this time, the evaporator / condenser 50 functions as a condenser.

  On the other hand, at the time of heat dissipation, the second heat exchange pipe 13a (second heat exchange unit 13) is connected to the reaction vessel 1 by the reverse drive unit 2 as shown in FIGS. The reaction container 1 is moved to the heat radiation position located at the lower part. At this time, as shown in FIG. 10, the reaction container 1 is moved from the heat storage position to the heat release position, whereby the heat storage material 3 in the heat storage material accommodation portion 14 passes between the plurality of heat exchange pipes by its own weight. It moves from the 1st heat exchange part 12 side to the 2nd heat exchange part 13 side, and is filled between the some 2nd heat exchange pipes 13a. That is, the heat storage material 3 in the heat storage material accommodation portion 14 moves downward due to its own weight and comes into contact with the second heat exchange pipe 13a. Similarly to the case where the reaction vessel 1 is moved to the heat storage position, the heat storage material 3 is fluidized and loosened inside the heat storage material accommodation portion 14 by being moved to the lower part. In addition, by supplying water vapor from the evaporator / condenser 50 into the vacuum chamber 11 through the water vapor inlet / outlet port 111 of the vacuum chamber 11, the inside of the heat storage material accommodation unit 14 through the numerous holes 141 of the heat storage material accommodation unit 14. Steam is allowed to flow into. At this time, the evaporator / condenser 50 functions as an evaporator. Thereby, since the heat storage material 3 in the heat storage material accommodation part 14 carries out a hydration reaction and dissipates heat, the coolant liquid which flows through the inside of the 2nd heat exchange pipe 13a is heated with the heat. Thereafter, the heated coolant liquid is sent to the heater core 30 and the battery 40 via a pipe (not shown) to heat the heater core 30 and the battery 40.

  In the first embodiment, as described above, the first heat exchange unit 12 through which exhaust gas (heat exchange fluid) flows and the second heat exchange unit 13 through which coolant liquid (heat exchange fluid) flows are used as the heat storage material 3. Are provided in the reaction vessel 1 including the heat storage material accommodation unit 14, and in the reaction vessel 1, the dedicated first heat exchange unit 12 and second heat exchange unit in which different exhaust gases and coolant liquids are separately provided, respectively. Since it flows in two systems of 13, it is different from the case where both exhaust gas and coolant liquid are flowed to a common heat exchange part (flow path), and it suppresses that one heat exchange fluid mixes with the other heat exchange fluid. Can do. As a result, it is possible to suppress the performance of the heat exchange fluid from being deteriorated due to the contamination of foreign matters. Further, in the reaction vessel 1, by providing the first heat exchanging part 12 through which the exhaust gas flows and the second heat exchanging part 13 through which the coolant liquid flows separately from each other, different heat exchange fluids can be used as a common heat exchanging part (flow). Unlike the configuration that flows through the heat exchange section, there is no need to switch the heat exchange fluid that flows through the heat exchange section between heat storage and heat dissipation, so a flow path switching valve is provided to switch the heat exchange fluid that flows through the heat exchange section. There is no need. As a result, it is possible to suppress the flow path configuration of the heat exchange fluid of the chemical heat storage device 100 from becoming complicated.

  In addition, the reversal drive unit 2 causes the heat storage position (first position) at which the heat storage material 3 contacts the first heat exchange unit 12 and the heat storage material 3 to contact the second heat exchange unit 13 according to heat storage and heat dissipation. By selectively moving the reaction vessel 1 to the heat radiation position (second position) to be performed, the heat storage material 3 is intensively brought into contact with the first heat exchange unit 12 during heat storage, and the heat storage material 3 is Since the heat can be intensively brought into contact with the two heat exchanging portions 13, heat can be efficiently exchanged between the corresponding heat exchange fluid and the heat storage material 3 in both cases of heat storage and heat dissipation. As a result, the heat exchange response (heat exchange rate) can be improved. Therefore, in this chemical heat storage device 100, deterioration of the performance of the heat exchange fluid and complication of the heat exchange fluid flow path configuration due to the flow of different heat exchange fluids to the common heat exchange section (flow path) are suppressed. However, at the time of heat storage and heat dissipation, heat exchange with the heat exchange fluid (exhaust gas) for heat storage and the heat exchange fluid (coolant liquid) for heat dissipation can be performed satisfactorily.

  In the first embodiment, as described above, the reversal drive unit 2 causes the first heat exchange unit 12 to be located at the lower part of the reaction vessel 1 and the second heat exchange unit 13 to be provided at the lower part of the reaction vessel 1. When the first heat exchange unit 12 or the second heat exchange unit 13 is located at the lower part of the reaction vessel 1 and the heat storage material 3 is moved to the lower part by its own weight. It moves and contacts the first heat exchange unit 12 or the second heat exchange unit 13. As a result, the first heat exchange unit 12 or the second heat exchange unit 13 can be easily positioned at the lower part of the reaction vessel 1 by simply turning the reaction vessel 1 upside down by the inversion driving unit 2, and the heat storage material. 3 can be moved by its own weight to the side of the heat exchanging part located at the lower part of the reaction vessel 1, so that the heat accumulating material 3 can be easily exchanged with the first heat exchanging part 12 or the second heat exchanging according to heat storage and heat dissipation. The portion 13 can be selectively contacted. Moreover, since the heat storage material 3 is flowed and loosened by moving the heat storage material 3 to the lower part by its own weight, it can suppress that the heat storage material 3 solidifies, As a result, the service life of the heat storage material 3 can be reduced. Can be extended. In addition, unlike the case where the heat storage material 3 is filled in the heat storage material accommodating portion 14 without a gap due to the presence of a space in the reaction container 1 where the heat storage material 3 can move, the heat storage material 3 is subjected to a hydration reaction. Even when it expands, the heat storage material 3 can be suppressed from being solidified. Also by this, the service life of the heat storage material 3 can be extended.

  In the first embodiment, as described above, the exhaust gas flow channel 151 (161) having a vertically symmetrical structure for supplying or discharging exhaust gas to or from the first heat exchange unit 12 and the second heat exchange unit 13 are provided. A coolant liquid flow path 152 (162) having a vertically symmetrical structure for supplying or discharging the coolant liquid is provided. In addition, when the reaction vessel 1 is located at both the heat storage position and the heat dissipation position, the exhaust gas is supplied to or discharged from the first heat exchange unit 12 via the exhaust gas channel 151 (161), and the coolant liquid channel The coolant liquid is supplied to or discharged from the second heat exchanging unit 13 through 152 (162). As a result, regardless of whether the reaction vessel 1 is located at either the heat storage position or the heat dissipation position, the first heat exchange unit 12 is provided via the exhaust gas flow path 151 (161) and the coolant liquid flow path 152 (162), respectively. The exhaust gas inside and the coolant liquid in the second heat exchange unit 13 can be circulated at all times.

  Moreover, in 1st Embodiment, as mentioned above, the porous structure which has many holes 141 which the water vapor | steam which discharge | releases from the thermal storage material 3 by a dehydration reaction at the time of thermal storage, and hydration reacts with the thermal storage material 3 at the time of heat dissipation can pass through. The heat storage material accommodation part 14 is formed in a cylindrical shape by (punching metal). Thereby, at the time of heat storage, water vapor released from the heat storage material 3 by the dehydration reaction inside the heat storage material accommodation unit 14 can be easily released to the outside of the heat storage material accommodation unit 14 through the numerous holes 141, At the time of heat radiation, the heat storage material 3 and the water vapor can be hydrated inside the heat storage material accommodation portion 14 by taking in water vapor from the outside of the heat storage material accommodation portion 14 through the numerous holes 141. Also, by forming the heat storage material accommodation portion 14 in a cylindrical shape with a porous structure, unlike the case where the water vapor inlet / outlet passage is provided only at a specific position of the heat storage material accommodation portion 14, the entire area of the heat storage material accommodation portion 14 (all Since the water vapor can be discharged from the periphery) to the outside of the heat storage material accommodation part 14 and the water vapor can be taken into the heat storage material accommodation part 14 from the entire region (all circumferences) of the heat storage material accommodation part 14, the heat storage material The dehydration reaction and the hydration reaction of the heat storage material 3 in the housing part 14 can be performed more uniformly.

  Moreover, in 1st Embodiment, while arrange | positioning the 1st heat exchange part 12 and the 2nd heat exchange part 13 inside the thermal storage material accommodating part 14 as mentioned above, the thermal storage material 3 is made into the thermal storage material accommodating part 14. Are movably disposed on the first heat exchange unit 12 side and the second heat exchange unit 13 side. Thereby, since the heat storage material 3 can be directly contacted with the 1st heat exchange part 12 or the 2nd heat exchange part 13 in the inside of the heat storage material accommodating part 14, the heat exchange fluid of the corresponding heat exchange part and Heat exchange with the heat storage material 3 can be performed more efficiently.

  In the first embodiment, as described above, the first heat exchange unit 12 (second heat exchange unit 13) is configured by a plurality of first heat exchange pipes 12a (second heat exchange pipes 13a) facing each other. Then, the plurality of first heat exchange pipes 12a (second heat exchange pipes 13a) are arranged at intervals that allow the heat storage material 3 to move between the plurality of first heat exchange pipes 12a (second heat exchange pipes 13a). To do. As a result, exhaust gas (coolant liquid) can be dispersed and flowed through the plurality of first heat exchange pipes 12a (second heat exchange pipes 13a), and the first heat exchange pipe 12a ( Since the heat storage material 3 can be brought into contact with the entire circumference of each of the second heat exchange pipes 13a), the heat exchange efficiency between the corresponding heat exchange fluid and the heat storage material 3 can be improved. As a result, the responsiveness of heat exchange can be enhanced.

  Further, in the first embodiment, as described above, while the vehicle 110 is traveling, the reaction container 1 is moved to the heat storage position, and the exhaust gas composed of high-temperature exhaust gas flows inside the first heat exchange unit 12. The heat storage material 3 is used to store heat, and when the vehicle 110 starts to travel, the reaction container 1 is moved to the heat dissipation position and is radiated to the heat storage material 3 to allow the heat storage material 3 to dissipate the coolant through the coolant liquid. Then, a predetermined portion (the heater core 30 and the battery 40) of the vehicle 110 is heated. Thus, while the vehicle 110 is traveling, heat can be effectively stored by the heat storage material 3 using the heat of the exhaust gas of the vehicle 110, and at the start of traveling of the vehicle 110, heat is stored in the heat storage material 3. Since the predetermined heat (heater core 30 and battery 40) of the vehicle 110 can be heated by dissipating the generated heat, the heat of the exhaust gas can be effectively utilized.

(Second Embodiment)
Next, with reference to FIG. 11 and FIG. 12, the chemical heat storage apparatus 200 by 2nd Embodiment of this invention is demonstrated. In the second embodiment, unlike the first embodiment, a configuration will be described in which exhaust gas directly flows into the first shaft portion 215 without passing through the exhaust gas groove portion of the first bracket portion 217.

  As shown in FIGS. 11 and 12, the first shaft portion 215 has an exhaust gas passage 215a and a coolant liquid passage 215b extending in the Y direction. Unlike the first embodiment, the exhaust gas passage 215a is formed so as to penetrate the first shaft portion 215 in the Y direction. Further, the end of the exhaust gas flow path 215a on the Y1 direction side is connected to the exhaust gas inflow portion 220 via a seal bearing 210. Further, unlike the first embodiment, the first bracket portion 217 does not have an exhaust gas groove portion that is formed around the first shaft portion 215 in a circumferential shape. Thereby, the exhaust gas is linearly introduced into the exhaust gas flow path 215a of the first shaft portion 215 via the exhaust gas inflow portion 220. That is, unlike the case where exhaust gas flows into the exhaust gas flow path 215a of the first shaft portion 215 via the exhaust gas groove portion of the first bracket portion 217, the chemical heat storage device 100 suppresses an increase in exhaust gas exhaust resistance. Is possible.

  Also in the second embodiment, similarly to the first embodiment, the reaction vessel 1 is rotated around the rotation axis L1 extending in the Y direction by the reversal drive unit 2, thereby the first heat exchange pipe. It is configured to be selectively moved to a heat storage position where the heat storage material 3 contacts 12a (see FIG. 11) and a heat radiation position where the heat storage material 3 contacts the second heat exchange pipe 13a (see FIG. 12). Yes.

  In addition, the other structure of 2nd Embodiment is the same as that of the said 1st Embodiment.

  In the second embodiment, as described above, the first heat exchange unit 12 through which exhaust gas (heat exchange fluid) flows and the second heat exchange unit 13 through which coolant liquid (heat exchange fluid) flows are used as the heat storage material 3. Is provided in the reaction container 1 including the heat storage material accommodation unit 14 for accommodating the heat storage fluid, so that it is possible to prevent one heat exchange fluid from being mixed into the other heat exchange fluid. It can suppress that the performance of a heat exchange fluid falls. Further, in the reaction vessel 1, a flow for switching the heat exchange fluid flowing through the heat exchange unit is provided by separately providing the first heat exchange unit 12 through which the exhaust gas flows and the second heat exchange unit 13 through which the coolant liquid flows. Since it is not necessary to provide a path switching valve or the like, it is possible to prevent the flow path configuration of the heat exchange fluid of the chemical heat storage device 200 from becoming complicated. In addition, the reversal drive unit 2 causes the heat storage position (first position) at which the heat storage material 3 contacts the first heat exchange unit 12 and the heat storage material 3 to contact the second heat exchange unit 13 according to heat storage and heat dissipation. By selectively moving the reaction vessel 1 to the heat radiation position (second position) to be performed, the heat storage material 3 is intensively brought into contact with the first heat exchange unit 12 during heat storage, and the heat storage material 3 is 2 Since the heat can be brought into contact with the heat exchanging section 13 in a concentrated manner, the heat exchange response (heat exchange speed) can be improved. Therefore, in this chemical heat storage device 200, the deterioration of the performance of the heat exchange fluid and the complexity of the flow path configuration of the heat exchange fluid caused by the flow of different heat exchange fluids to the common heat exchange section (flow channel) are suppressed. However, at the time of heat storage and heat dissipation, heat exchange with the heat exchange fluid (exhaust gas) for heat storage and the heat exchange fluid (coolant liquid) for heat dissipation can be performed satisfactorily.

  The remaining effects of the second embodiment are similar to those of the aforementioned first embodiment.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the said 1st and 2nd embodiment, although the example which mounts the chemical heat storage apparatus of this invention in a vehicle was shown, this invention is not limited to this. The chemical heat storage device of the present invention may be mounted on a moving body other than a vehicle, or may be used as a stationary type.

  In the first and second embodiments, the exhaust gas and the coolant liquid are shown as examples of the first heat exchange fluid and the second heat exchange fluid of the present invention, respectively, but the present invention is not limited to this. Absent. In the present invention, the first heat exchange fluid and the second heat exchange fluid may be fluids other than the exhaust gas and the coolant liquid, respectively.

  In the first and second embodiments, the example in which the motor is used as the moving means for moving the reaction container to the heat storage position (first position) and the heat radiation position (second position) has been described. Not limited. In the present invention, the reaction vessel may be moved to the first position and the second position by moving means other than the motor.

  Moreover, in the said 1st and 2nd embodiment, although the reaction container was shown upside down by rotating around the rotation axis L1 extended in a pipe-axis direction, this invention is not limited to this. In the present invention, the reaction vessel may be turned upside down by turning around a turning shaft extending in a direction intersecting the tube axis direction.

  Moreover, in the said 1st and 2nd embodiment, although the reaction container was shown upside down, the example of the structure moved to a thermal storage position (1st position) and a thermal radiation position (2nd position) was shown. It is not limited to this. In the present invention, for example, the reaction vessel may be moved to the first position and the second position without being inverted upside down, such as sliding.

  Moreover, in the said 1st and 2nd embodiment, although the thermal storage material accommodating part formed of the punching metal was shown as an example of the thermal storage material accommodating part formed of the porous structure of this invention, this invention is this Not limited. In this invention, you may form a thermal storage material accommodating part with the members which have porous structures other than punching metal, such as ceramics, for example. Moreover, it is not limited to the heat storage material housing portion having a porous structure, but may be a heat storage material housing portion that allows water vapor to enter and exit only from a specific position.

Moreover, in the said 1st and 2nd embodiment, although the thermal storage material which consists of calcium oxide (CaO) was shown as an example of the thermal storage material of this invention, this invention is not limited to this. In the present invention, a heat storage material made of a material other than calcium oxide (CaO) such as calcium sulfate (CaSO ₄ ), magnesium oxide (MgO), and barium oxide (BaO) may be used.

  In the first and second embodiments, the first heat exchange pipe and the second heat exchange pipe are formed with the same cross-sectional shape (size, shape, and plate thickness), and the same number is provided. Although shown, the present invention is not limited to this. In this invention, according to a use, a 1st heat exchange pipe and a 2nd heat exchange pipe may be formed in a mutually different shape, and may be provided by a mutually different number.

  In the first and second embodiments, the first heat exchange pipe (second heat exchange pipe) is formed in a simple circular tube shape, but the present invention is not limited to this. In the present invention, vertical fins 301a extending in the tube axis direction may be provided on the outer surface of the heat exchange pipe 301 as in the first modification shown in FIG. 13, or as in the second modification shown in FIG. A ring-shaped lateral fin 302 a may be provided on the outer surface of the heat exchange pipe 302. A spiral fin may be provided on the outer surface of the heat exchange pipe. Thereby, it is possible to further improve the heat exchange efficiency between the heat exchange fluid flowing inside the heat exchange pipe and the heat storage material. However, even when the heat exchange pipe is configured as in the first modification and the second modification, the interval between the adjacent heat exchange pipes needs to be an interval through which the heat storage material can pass.

1 Reaction vessel 2 Reverse drive unit (moving means)
3 Thermal storage material 12 1st heat exchange part 12a 1st heat exchange pipe (heat exchange pipe)
13 2nd heat exchange part 13a 2nd heat exchange pipe (heat exchange pipe)
14 Heat storage material accommodation part 30 Heater core (predetermined part)
40 battery (predetermined part)
DESCRIPTION OF SYMBOLS 100 Chemical heat storage apparatus 110 Vehicle 151,161 Exhaust gas flow path (1st flow path)
152, 162 Coolant liquid channel (second channel)

Claims (7)

A reaction vessel including a first heat exchange section in which the first heat exchange fluid flows and a second heat exchange section in which the second heat exchange fluid flows, and a heat storage material storage section for storing the heat storage material;
Depending on the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction, the heat storage material is stored in the first position where the heat storage material is in contact with the first heat exchange unit and in the second heat exchange unit. Moving means for selectively moving to a second position where the material contacts ,
The moving means includes the reaction between the first position where the first heat exchanging part is located below the reaction container and the second position where the second heat exchanging part is located below the reaction container. Including a reversal drive that moves by reversing the container up and down,
When the first heat exchange part or the second heat exchange part is located in the lower part of the reaction vessel, the heat storage material moves to the lower part by its own weight and moves to the first heat exchange part or the second heat exchange part. A chemical heat storage device that is configured to contact . The high temperature first heat exchange fluid flows through the first heat exchange section, and the second heat exchange fluid to be supplied with heat flows through the second heat exchange section. And
The reversal drive unit moves the reaction container upside down to the first position where the first heat exchange unit is located below the reaction container during heat storage, and the second heat exchange unit performs the reaction during heat dissipation. It is constructed the reaction vessel to the second position located under the container so as to vertically reversed movement, the chemical heat storage device according to claim 1. A reaction vessel including a first heat exchange section in which the first heat exchange fluid flows and a second heat exchange section in which the second heat exchange fluid flows, and a heat storage material storage section for storing the heat storage material;
Depending on the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction, the heat storage material is stored in the first position where the heat storage material is in contact with the first heat exchange unit and in the second heat exchange unit. Moving means for selectively moving to a second position where the material contacts;
A first flow path having a vertically symmetrical structure that supplies or discharges the first heat exchange fluid to the first heat exchange section, and supply of the second heat exchange fluid to the second heat exchange section. or Bei example and a second flow path of the vertically symmetric structure to discharge,
When the reaction vessel is located at both the first position and the second position, the first heat exchange fluid is supplied to or discharged from the first heat exchange section via the first flow path. together, wherein via the second flow path the relative second heat exchanger supply or discharge of the second heat exchange fluid is configured to be performed, chemical heat storage device. A reaction vessel including a first heat exchange section in which the first heat exchange fluid flows and a second heat exchange section in which the second heat exchange fluid flows, and a heat storage material storage section for storing the heat storage material;
Depending on the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction, the heat storage material is stored in the first position where the heat storage material is in contact with the first heat exchange unit and in the second heat exchange unit. Moving means for selectively moving to a second position where the material contacts,
The heat storage material accommodating portion is formed in a cylindrical shape by a porous structure having a large number of holes that are discharged from the heat storage material by a dehydration reaction during heat storage and through which water vapor that hydrates with the heat storage material during heat dissipation can pass. and are, chemical heat storage device. A reaction vessel including a first heat exchange section in which the first heat exchange fluid flows and a second heat exchange section in which the second heat exchange fluid flows, and a heat storage material storage section for storing the heat storage material;
Depending on the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction, the heat storage material is stored in the first position where the heat storage material is in contact with the first heat exchange unit and in the second heat exchange unit. Moving means for selectively moving to a second position where the material contacts,
The first heat exchange part and the second heat exchange part are arranged inside the heat storage material accommodation part, and the heat storage material is located inside the heat storage material accommodation part, on the first heat exchange part side. and it is movably disposed in the second heat exchange portion, chemical heat storage device. A reaction vessel including a first heat exchange section in which the first heat exchange fluid flows and a second heat exchange section in which the second heat exchange fluid flows, and a heat storage material storage section for storing the heat storage material;
Depending on the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction, the heat storage material is stored in the first position where the heat storage material is in contact with the first heat exchange unit and in the second heat exchange unit. Moving means for selectively moving to a second position where the material contacts,
The first heat exchange part and the second heat exchange part are both constituted by a plurality of heat exchange pipes facing each other,
Wherein the plurality of heat exchange pipe, the heat storage material is disposed with a movable distance between the plurality of heat exchange pipes, chemical heat storage device. A reaction vessel including a first heat exchange section in which the first heat exchange fluid flows and a second heat exchange section in which the second heat exchange fluid flows, and a heat storage material storage section for storing the heat storage material;
Depending on the heat storage by the dehydration reaction of the heat storage material and the heat release by the hydration reaction, the heat storage material is stored in the first position where the heat storage material is in contact with the first heat exchange unit and in the second heat exchange unit. Moving means for selectively moving to a second position where the material contacts,
The reaction vessel and the moving means are installed in a vehicle,
While the vehicle is running, the reaction container is moved to the first position, and the first heat exchange fluid made of high-temperature exhaust gas flows into the first heat exchange section, thereby causing the heat storage material to The second heat exchanging fluid that flows through the second heat exchanging part by storing heat and moving the reaction container to the second position to dissipate heat to the heat accumulating material when the vehicle starts to travel. heating a predetermined portion of the vehicle via a are configured to be performed, chemical heat storage device.

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